I have been prescribed TOPIRAMATE, 100 mg X 2 daily recently. I had been on TOPAMAX, 50 mg, 1 X?

... daily for a few years for my migraines. No problem and it seemed to help pretty much. Now, my psychiatrist wants to use it for my Bi-Polar disorder thereby changing it to the above dosage above of 100 mg. X 2 daily. I am having a hard time adjusting to this dosage. My major question is this: I am a type II Diabetic. All of a sudden my sugars are going off the chart! So, is it possible that the cause of this, is in fact the large increase of this medication?